Most underrated programmables

[Thomas Radtke]

(03-23-2014 08:54 PM)Dave Britten Wrote:  HP 20S: Algebraic, but surprisingly capable. 99 program steps, 16 labels, subroutines, and 10 storage registers.

It lacks indirect addressing, unfortunately. One could argue that this isn't very useful on a machine with that little memory, but there are applications not working just because of this omission. Also a little problematic are the programs you can load into memory. You just need the manual to make use of them. It was my second programmable and my first HP :-).

The ultimate underrated machines are the X-less 48 series models. It seems everyone goes for a SX/GX, and with some patience I got a like-new 48G including box and manuals for 25 EUR several years ago. Very hard to beat value/money ratio.

(Edited for one typo)